Alternative uses for tannery wastes : a review of environmental, sustainability, and science / Cesar Vinicius Toniciolli Rigueto in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 20 p. Titre : Alternative uses for tannery wastes : a review of environmental, sustainability, and science Type de document : texte imprimé Auteurs : Cesar Vinicius Toniciolli Rigueto, Auteur ; Marieli Rosseto, Auteur ; Daniela Dal Castel Krein, Auteur ; Bruna Elisangela Pessini Ostwald, Auteur ; Lillian Avila Massuda, Auteur ; Bárbara Belém Zanella, Auteur ; Aline Dettmer, Auteur Année de publication : 2020 Article en page(s) : 20 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption Biocarburants Biogaz Biopolymères Carburants diésel Cuirs et peaux -- Industrie -- Aspect de l'environnement Déchets industriels -- Recyclage Tannage -- Déchets Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The manufacture of leather covers a wide productive chain and beyond contributes to the economic flow. The various stages of leather processing result in high volumes of solid waste. In Brazil, a daily generation of 375 tons of solid waste is estimated, and landfills are still the most used route to its destination. In this review, emphasis will be given to researches that have sought alternatives for the use of solid waste from the tannery industry. Among the main applications of solid tannery wastes, the following stand out production of adsorbent materials, biodiesel, biogas, biopolymers, applications in agriculture and other applications involving extraction/recovery of compounds of industrial/commercial interest, isolation of microorganisms and production of enzymes and applications in the animal diet. In each alternative of waste application, the technologies used, the opportunities, and the challenges faced are mentioned. We hope that this review can provide valuable information to promote the broad understanding of the possibilities that tannery solid wastes has for the development of biodegradable and agricultural products, wastewater treatment, extraction of compounds of industrial and commercial interest, among others. Note de contenu : - METHODOLOGY - MAIN APPLICATIONS STUDIED FOR TANNERY WASTES : Adsorption - Biodiesel - Biogas - Biopolymers - Agriculture - Other applications - Table 1 : Studies that used tannery wastes from various stages of leather processing as an adsorbent material - Table 2 : Main fatty acids present in the fat extracted from tannery wastes - Table 3 : Comparison of studies involving biodiesel from tannery waste, petro-diesel, and B100 - Table 4 : Biodiesel characteristics in different world regulations - Table 5 : Pretreatments to increase biogas production - Table 6 : Main parameter analyzed to obtain biogas DOI : https://doi.org/10.1186/s42825-020-00034-z En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00034-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37454 [article]

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Anaerobic digestion of animal glue industry solid wastes / S. Pulavendran in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 2 (03-04/2005)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 89, N° 2 (03-04/2005) . - p. 67-70 Titre : Anaerobic digestion of animal glue industry solid wastes Type de document : texte imprimé Auteurs : S. Pulavendran, Auteur ; R. Ganesh, Auteur ; A. Thangamani, Auteur ; K. Thirumaran, Auteur ; R. A. Ramanujam, Auteur Année de publication : 2005 Article en page(s) : p. 67-70 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésifs d'origines animales Bio-méthanisation Biogaz Déchets industriels -- Recyclage Déchets organiques -- Recyclage Digestion anaérobie Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Anaerobic digestion of animal glue industry solid wastes (AGISW) (residues from neutralised fleshings after glue extraction) was studied in a semi-continuous bench scale digester in order to determine the extent of the conversion into biogas. The Carbon/Nitrogen (C/N) ratio of AGISW is nearly 6.0. Solid wastes and wastewater from a local glue manufacturer were used as substrate for the anaerobic digestion. The study used a bench scale digester with a working volume of 6.5 litres operating at ambient temperature (28 ± 2°C). A hydraulic retention time (HRT) of 40 days and an Organic Loading Rate (OLR) of 3 ± 0.2 g /l. d were maintained during the study period. The study showed that 65 % of the volatile solids was destroyed. The average specific gas productions were 0.28 l /g of volatile solid added and 0.48 l/g of volatile solid removed. (Volatile solids are determined by ignition at 550°C and are a measure of the organic matter present in the waste - mainly denatured lipids and proteins). The values of specific gas production and percentage Volatile Solids (VS) destruction are in agreement with those for industrial and agro industrial wastes reported in the literature. The results revealed an interesting fact that, anaerobic digestion of AGISW could be operated at high Volatile Fatty Acids (VFA) concentration without affecting gas production. Anaerobic digestion of AGISW was studied for the first time with a view to managing solid wastes in an ecofriendly manner. The authors are of the view that this maiden attempt would help the industry manufacturing animal glue to use biogas from its waste resource as fuel. Note de contenu : - Feed preparation - Experimental set-up - Digester start-up and operation - Analytical techniques - Table 1 : Parameters of the waste characteristics before and after anaerobic digestion En ligne : https://drive.google.com/file/d/1G5zrUHWHz-UPljLvB1vhNFcW3jqzNt4C/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39596 [article]

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Biodegradation of leather solid waste and manipulation of methanogens and chromium-resistant microorganisms / Caroline Borges Agustini in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 1 (01/2017)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 1 (01/2017) . - p. 7-15 Titre : Biodegradation of leather solid waste and manipulation of methanogens and chromium-resistant microorganisms Type de document : texte imprimé Auteurs : Caroline Borges Agustini, Auteur ; Wolmir Lourenço Neto, Auteur ; Guilherme P. S. Priebe, Auteur ; Marisa Costa, Auteur ; Mariliz Gutterres, Auteur Année de publication : 2017 Article en page(s) : p. 7-15 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biogaz Cuirs et peaux -- Biodégradation Cuirs et peaux -- Déchets -- Recyclage Déchets -- Valorisation Déchets industriels -- Recyclage Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The final solid wastes generated by tanneries are usually separately disposed of in hazardous industrial landfills, which are characterized as places of waste confinement where the residues undergo undesired and uncontrolled biological treatment. The storage and corresponding evolution of the sludge has not yet focalized the attention of the scientific community. Apart from developing knowledge of the ecology and function of the microbial community in anaerobic digestion processes, it is necessary to control this biological process. The manipulation of strict anaerobic microorganisms is the limiting factor in their isolation due to their high sensitivity to oxygen; therefore, cultivation under anaerobic conditions is essential. This work presents an evaluation of biogas generation and quality. In addition, microbial biodegradation is carried out in bench bioreactors containing two main solid wastes from tanneries: wet-blue shavings and sludge from a tannery wastewater treatment plant (WWTP). We analyzed two storage conditions of the sludge: storage under ambient conditions and under refrigeration. Sludge kept at ambient conditions showed a significantly higher methane production; methane was only detected in vials containing high concentrations of microorganisms. The manipulation of microorganisms did not interrupt biodegradation. The isolation technique with vials proved to be appropriate for the quantification of methanogenic microorganisms in biodegradation tests, although it was not fully elucidated for their isolation. Note de contenu : - MATERIALS AND METHODS : Bioreactor assembling - Biogas composition monitoring - Statistical analysis - Microbial collection and analysis - RESULTS AND DISCUSSION : Biogas and methane production - Statistical results - Microbiological results En ligne : https://drive.google.com/file/d/1sceXbIkeqzbHiY58k_0kIs9K846GK9kC/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27564 [article]

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Industrial ecology as a planning approach for a sustainable tanning industrial estate / Rita Puig in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 6 (11-12/2008)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 92, N° 6 (11-12/2008) . - p. 238-244 Titre : Industrial ecology as a planning approach for a sustainable tanning industrial estate Type de document : texte imprimé Auteurs : Rita Puig, Auteur ; Montse Argelich, Auteur ; Miquel Solé, Auteur ; Sonia Bautista, Auteur ; Jordi Riba, Auteur ; Pere Fullana, Auteur ; Cristina Gazulla, Auteur ; Dolors Calvet, Auteur ; Andrea Raggi, Auteur ; Bruno Notarnicola, Auteur Année de publication : 2008 Article en page(s) : p. 238-244 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bilan énergétique Biogaz Cuirs et peaux -- Industrie -- Aspect de l'environnement Développement durable Industries -- Relocalisation Méthodologie tanneries -- Espagne Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This paper analyses the relocation, following Industrial Ecology principles, of tanneries from Igualada, Spain to a new sustainable industrial estate. The tanning industry in Igualada has been located in the same river basin for more than 100 years. During the last decade, the city has been growing very fast and it is now beginning to force the industry to move to the outskirts. Environmental, social and economic aspects were analysed to assess the feasibility of the proposed move. Results clearly show that relocating the tanneries to a new industrial estate is absolutely necessary for these companies to achieve sustainability. This move is economically feasible, it will have important environmental benefits (compared to the present situation) and is agreed upon by all involved. However, a very important challenge was detected: there is no agreement on where to locate the new industrial estate. The current proposal made by Catalan authorities lacks the unanimous agreement of all involved. To solve this problem meetings among interested parties will soon take place. Otherwise, the future of this important cluster in Igualada is uncertain. This work helped the tanneries of the industrial cluster in Igualada, and could also help other similar clusters, e.g. to analyse the sustainability of a proposed move and to plan new sustainable industrial areas. Note de contenu : - The Igualada tanning industry - The comparative scenarios - Methodology - Results and discussion : Environmental improvements to be achieved - Waste treatment - Economic feasibility of the move - Social acceptance by all involved bodies - Table 1 : Qualitative improvements to be achieved in the new industrial estate - Table 2 : Capacity of the new biogas plant - Table 3 : Results of energy balance associated with production of 200kg of leather in the current and future situation En ligne : https://drive.google.com/file/d/1V_qerAQUcL12EX28MCM9Rvw2qGNhwwMw/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38992 [article]

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Investigation of different pre-treatments of chromium leather shavings to improve biogas production in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 14 p. Titre : Investigation of different pre-treatments of chromium leather shavings to improve biogas production Type de document : texte imprimé Année de publication : 2020 Article en page(s) : 14 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biogaz Chimie analytique Cuirs et peaux -- Déchets -- Recyclage Digestion anaérobie Extrusion (mécanique) Traitement hydrothermique Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Chromium shavings are wet by-products of the leather industry, of which thousands of tons accrue worldwide during leather manufacture. Due to their chromium content, chromium shavings are responsible for the most important ecological challenges caused by the leather industry. They are stable towards temperatures of up to 110 °C and enzymatic degradation. This high stability is caused by the three-dimensional native structure, typical for collagen, and additional chemical cross-links between the collagen fibres achieved by Cr3+ salts in the tanning process. Therefore, hitherto chromium shavings are not utilized industrially to produce biogas. In order to generate biogas, this stable structure has to be denatured. Chromium shavings were pre-treated by extrusion and hydrothermal methods. To prove the enzymatic degradability, the different pre-treatments were evaluated by differential scanning calorimetry (DSC), enzymatic assays, and by measuring the solubility in water. The biogas production potential was investigated using batch trials to examine feasibility. Results demonstrated that both pre-treatments allowed enzymatic attack and increased degradability of the chromium shavings reducing the lag-phase of biogas production and the remaining waste. Note de contenu : - INTRODUCTION : Anaerobic digestion of chromium leather waste - Collagen structure and stability - Destabilization of chromium leather waste - MATERIAL AND METHODS : Material - Pre-treated samples - Extrusion - Hydrothermal treatment - Scanning electron microscope (SEM) - Differential scanning calorimetry (DSC) - Enzyme assays - Solubility in water - Biogas production - RESULTS AND DISCUSSION : Assessment of the pre-treated samples - Biogas production - Table 1 : Pre-treatment conditions and sample nomenclature DOI : https://doi.org/10.1186/s42825-020-00028-x En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00028-x.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37338 [article]

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Lack of inhibitory effect of chromium on anaerobic co-digestion of tannery solid wastes / Caroline Borges Agustini in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)  

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Mass reduction of tannery solid wastes by biodegradation / Caroline Borges Agustini in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 5 (09-10/2016)  

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Special review : anaerobic digestion of leather industry wastes - An alternate source of energy / Guilherme P. S. Priebe in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 2 (02/2017)  

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Tannery waste to biogas / Jayna Pessuto in LEATHER INTERNATIONAL, Vol. 217, N° 4864 (09/2016)  

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Under the microscope / Carolina Gomes in LEATHER INTERNATIONAL, Vol. 220, N° 4885 (10/2018)

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